Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

The annotations already declare readOnlyHint, idempotentHint and destructiveHint=false, so the safety profile is covered; the description usefully reinforces this with "opens nothing by itself" and clarifies the actual payload (step-by-step screens, buttons, fields). It also discloses the constraint that Service Autopilot has no public API or self-service keys as of a dated check, which is real context an agent cannot get from annotations. It stops short of describing the shape or length of the returned guidance.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Is the description appropriately sized, front-loaded, and free of redundancy?

The core payload statement is front-loaded and useful, but the text is a run-on chain of clauses, the opening "Get route in the user's own Service Autopilot account" largely restates the name, and the final API sentence repeats "Service Autopilot" redundantly. Tightening would make the read-do split far more scannable.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a zero-parameter, read-only tool with no output schema, the description covers the essentials: what comes back and what to do next. The notable gap is that it never says how the route is selected without any input, which is the one thing an agent needs to know before invoking it.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The tool takes zero parameters, so there is no parameter meaning to add; the baseline applies. The description does not address the obvious consequent question of how the target route is determined with no arguments (presumably from conversation context), but with an empty schema there is little the description could document.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Does the description clearly state what the tool does and how it differs from similar tools?

The description makes clear this is not an action tool but a guidance tool: it "returns how to do it in Service Autopilot step by step (screens, buttons, fields) and opens nothing by itself." That distinguishes it from the cotlet_browser_* siblings, which it names as the follow-up executors. It does not, however, distinguish it from the sibling action tools (service_autopilot_add_client, service_autopilot_create_job, etc.) or from cotlet_app_guide, leaving ambiguity about why one would request a route instead of calling those directly.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Does the description explain when to use this tool, when not to, or what alternatives exist?

Usage is only implied through the workflow chain: get the route, then perform it with cotlet_browser_* tools in the user's Service Autopilot Cloud Browser. There is no explicit when-to-use or when-not-to-use statement, and no guidance on how this relates to the other service_autopilot_* action tools that appear to do the same work.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.